August lindgren



2 Sheets-Sheet I.

(No Model.)

A. LINDGREN. ToNGUBLBss WHEEL GULTIVATOR.

No. 455,754. Patented July 14,1891.

(No Modell) 2 sheen-sheer 21 A. LINDGREN. TONGUBLBSS WHEEL GULTIVATOR,

No. 455,754. Patented July 14, 1891.

' UNITED STATES PATENT OFFICE.

AUGUST LINDGREN, OF MOLINE, ILLINOIS, ASSIGNOITO MOLINE PLOW COMPANY, OFSAME PLACE.

TONGUELESS AWHEEL-CU LT|VATOFL SPECIFICATION forming part of LettersPatent N o. 455,754, dated July 14, 1891.

Application filed October 14, 1890.

To @ZZ whom, t may concern.'

Be it known that I, AUGUST LINDGREN, of Moline, in the county of RockIsland and State of Illinois, have invented certain Improvemen ts inTongueless Wheel-Cultivators, of which the following is a specification.

Thisinvention relates to tongueless wheeled cultivators in which awheeled frame is provided with beams jointed at their forward ends tothe frame, so that they can rise and fall with relation thereto.

The invention consists in providing a machine of this character withlifting-springs designed to assist in supporting the beams while inoperation, in order to facilitate their control as tothe depth of cutand to assist in raisingthe beams to an inoperative position when themachine is not in motion or on the cessation of the draft, the saidsprings being combined with draft-levers, hereinafter described indetail.

The invention also consists in the construction and combination of partshereinafter described and claimed.

In the accompanying drawings, Figure l is a'perspective view of acultivator with my invention embodied therein. Fig. 2 is a top plan viewof the same. Fig. 3is a perspective View of one of the liftingspringsand one of the connected levers detached. Fig. 4 is a sectionalelevation on the line x w of Fig. 2,

showing the relation of the parts when thel machine is in operation.Fig. 5 is a similar view showing the relation of the parts with thebeams raised to inoperative positions.

Referring to the drawings, A A represent vertical arms journaled attheir upper ends in sleeves a a', adj ustably mounted on a horizontalconnecting-bar a2. At its lower end each of these arms is bent andextended outward, forming the axles of the machine, on the outer ends ofwhich are mounted groundwheels B B. As both arms and the parts carriedthereby are duplicates, the description of one will suftice'for both.

Between the ground-wheel and the vertical portion of the arm a sleeve Cis loosely mounted, to which is attached by a vertical axis the forwardend of a beam D, carrying at its opposite end the usual hoes or shoes dd and handle d2. The central portion of the Serial No. 368,068. (Nomodel.)

sleeve vC is cut away or recessed, the purpose of which will presentlyappear.

Upon the axle, on either side of the sleeve C, are loosely mountedsleeves or collars E E', 5 5

to the under sides of which is rigidly bolted a draft-lever F, (shown invdetail in Fig. 2,) provided at its lower end with a drag-shoe k, theoffice of which will hereinafter appear.

l'The draft-lever consists of a straight bar f 6o f2. At its upper endthe straight bar fex- 65 -tends outward some distance from the end ofits companion bar f', and the ends of both bars are perforated for thepassage of the upper laterally-bent end of a spring-supporting rod G.This rod extends `allel to the draft-lever to a point adjacent to theaxle, where it is rigidly secured to the top 4of an arm g, which isprovided with a perforated head g, encircling the axle and seatedlwithin the recessed portion of the sleeve C, be-

`fore referred to.

v The rod G is encircled I-I, the lower end of which is seated upon thetop of the arm g. This spring is compressed :by means of a washer h,'the rod above the spring and'connected by a link h2 to the under sideof the beam. To the bar f of the draft-lever an arm/L' is bolted,

by a coiled spring which extends above the axle rearward, where it isbent laterally.` Between its two ends this arm is bolted to an upwardextension of fthe sleeve B. The purpose of this arm is to Support thebeam when it is raised to an inoperative position.

From the vforegoing description it will be 9o 'seen that the draft-leverand the spring-snpporting rod turns on the axle as an axis,which alsoforms the axis of the beam. Owing to this construction and to theconnection between the spring-compressing Washer and the 9 5 beam, thespring in expanding will tend to lift the beam, and as the spring tendsto exs pand at all times the result is that the beam is yieldinglysustained.

The operation of the machineis as follows: vroo When in operation, thestrain from the draftanimals attached to the upper ends of `thesubstantially par- 7o loosely mounted on 8o draft-levers tends to lowertheir upper ends to the position shown in Fig. 4. This action will causethe springs to be compressed, allowing the beams to descend to anoperative position in the soil. When, however, the draft-levers arerelieved from strain at their upper ends, the springs resume theirexpanded state and exerting a lifting action on the beam at the sametime cause the upper ends of the draft-levers to ascend and the lowerends, carrying the drag-levers, to descend in contact with the ground,as shown in Fig. 5,in which position the 'parts remain. T he beams canthen be lifted and placed upon the arms i. It will be seen that when themachine is in motion the draft-levers are inoperative, as far as anyaction of the dragshoes is concerned, .and the beams are in operativeposition; but when the machine is not in motion and the draft-levers arerelieved from strain the dragshoes are automatically caused to come into4operative position and the force of the springs .permitted to beapplied to assist in lifting the beams.

i In order that the arched frame formed by the vertical portions of thearms A A and the connecting-bar a may be maintained in an uprightposition, the collars E, through which the arms pass at their lowerends, are formed with ears Z Z', extending on each side of the arm.WVhile these ears are constructed to admit of alimited amount of motionof the draft-levers with relation to the arms, they at the same timemaintain the latter in a substantially upright position.

It is to be understood that while I have shown and described certaindetails of construction suitable for carrying into effect my inventionthe same may be modified within reasonable limits without departing'from the spirit of the invention, provided the operation issubstantially the same.

Having thus described my invention, whatI claim is- 1. In a cultivator,the combination, with the beams which have a rising and fallingmovement, of liftin g-sprin gs and draft connections, said partsarranged to permit the springs to `exert a lifting force on the beams onthe cessation of the draft and to permit the beams to descend tooperative positions on the application of draft. Y

2. In a tongueless cultivator, the combination of the wheeled frame, thebeams connected thereto to rise and fall, the draft-levers, thelifting-springs thereon, and connections between the springs and thebeams.

3. In a tongueless wheeled cultivator, the combination, with the axles,of the beams mounted thereon to rise and fall, the draftlevers alsomounted on said axles and provided at their lower ends with thedrag-shoes, the spring-sustaining rods connected at their upper ends tothe drag-levers and mounted loosely on the axles at their opposite ends,the springs encircling the rods, and the links connecting the upper endsof the springs with the beams.

4. In a tongueless wheeled cultivator, the combination of a wheeledframe, the rising and falling beams D, mounted on horizontal axles, thedraft-levers F, adapted to bear at their rear ends on the ground whennot in action, the arms i, attached to the draft-levers to sustain thebeams in an inoperative position, and t-he lifting-springs locatedbetween the draft-,levers and the beams, whereby the springs are enabledto assist in lifting the beams out of action and also to assist incarrying them, when the machine is at rest, to the supporting-arms t'.

5. In combination with the connecting-bar a2, the arms A A jointedthereto to swing forward and backward and fastened into axles at theirlower ends, the wheels, the beams coupled to the axles, the collars E,having ears toprevent the falling of the arms A A', and the draft-leversattached to the collars and extended rearward to rest upon the groundwhen relieved from the draft, whereby the draft-arms are caused toassist in maintaining the axle-arms.

6. In a tongueless cultivator, the combination, with the axle, of thebeams provided at their forward ends with sleeves encircling the axle,said sleeves recessed at the center, the draft-eveners provided withsleeves mounted on the axle at each side of the first-named sleeves, thespring-sustained rods connected at their upper ends to the draft-evenersand provided at their lower ends with the perforated heads encirclingthe axles and seated in the recessed portion of the beam-sleeves, thecoiled springs encircling the rod and seated at their lower ends uponthe heads, and the links connecting the upper ends of the springs andthe beams.

In testimony whereof I hereunto set my hand, this 16th day of September,1890, in the presence of two attesting witnesses.

AUGUST LINDGREN.

Witnesses:

W. V. RICHARDS, M. G. MARoNEY.

IOO

